Kaley Cuoco, who plays a young witch on the WB's Charmed, has joined ABC's untitled comedy pilot about two sisters who live together despite having grown up under different circumstances--one rich, one poor.
She will portray Gabby, the younger sister to Marisa Coughlan's character.
Cuoco joined the cast of Charmed this season as Billie, a witch under the tutelage of the Charmed Ones (Alyssa Milano, Holly Marie Combs, and Rose McGowan). Before that, she had a starring role as the late John Ritter's daughter on ABC's comedy series 8 Simple Rules.
Charmed is ending its run at the end of this season, at the same time the WB and UPN merge to become The CW.